r + s + t=5

2r + 7s - 3t=13

1/2r - 1/3s + 2/3t=-1

I get confused when I come to the fractions.

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- Oct 9th 2006, 06:13 PMwpcp15solving systems of equations
r + s + t=5

2r + 7s - 3t=13

1/2r - 1/3s + 2/3t=-1

I get confused when I come to the fractions. - Oct 9th 2006, 06:18 PMtopsquark
- Oct 9th 2006, 06:19 PMwpcp15
Thank You

- Oct 9th 2006, 06:45 PMwpcp151 more question
One more question, what about?

a + b=3

-b + c=3

a +2c=10 - Oct 9th 2006, 06:59 PMThePerfectHacker
- Oct 9th 2006, 08:46 PMAfterShock
a + b = 3

-b + c = 3

a + 2c = 10

It's so easy after making it into a matrix:

1 1 0 3

0 -1 1 3

1 0 2 10

Where the last column is the augmented matrix (the = part).

Row reduce the rows:

1 0 0 2

0 1 0 1

0 0 1 4

x_1 = 2

x_2 = 1

x_3 = 4

x_1, x_2, x_3 -> a, b, c, respectively.

Try it with the first equation.